Patents by Inventor Gisle Langen Enstad

Gisle Langen Enstad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12256173
    Abstract: A method comprises, at a video conference system having cameras and microphone arrays each co-located with a corresponding one of the cameras: detecting a face of a participant, and estimating orientations of the face relative to the cameras, based on video captured by the cameras; receiving, from each of the microphone arrays, at least two microphone signals that represent detected audio from the participant; separately correlating the at least two microphone signals from each of the microphone arrays against each other using a correlation function, to produce correlation peaks for the microphone arrays corresponding to the microphone arrays and the cameras; determining a preferred camera among the cameras based on the correlation peaks and the orientations of the face relative to the cameras; and transmitting the video captured by the preferred camera to a network.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: March 18, 2025
    Assignee: CISCO TECHNOLOGY, INC.
    Inventor: Gisle Langen Enstad
  • Publication number: 20200275199
    Abstract: A microphone array includes one or more front-facing microphones disposed on a front surface of the collaboration endpoint and a plurality of secondary microphones disposed on a second surface of the collaboration endpoint. The sound signals received at each of the one or more front-facing microphones and the plurality of secondary microphones are converted into microphone signals. When the sound signals have a frequency below a threshold frequency, an output signal is generated from microphone signals generated by the one or more front-facing microphones and the plurality of secondary microphones. When the sound signals have a frequency at or above a threshold frequency, an output signal is generated from microphone signals generated by only the one or more front-facing microphones.
    Type: Application
    Filed: May 13, 2020
    Publication date: August 27, 2020
    Inventors: Gisle Langen Enstad, Haohai Sun, Johan Ludvig Nielsen
  • Patent number: 10687139
    Abstract: A microphone array includes one or more front-facing microphones disposed on a front surface of the collaboration endpoint and a plurality of secondary microphones disposed on a second surface of the collaboration endpoint. The sound signals received at each of the one or more front-facing microphones and the plurality of secondary microphones are converted into microphone signals. When the sound signals have a frequency below a threshold frequency, an output signal is generated from microphone signals generated by the one or more front-facing microphones and the plurality of secondary microphones. When the sound signals have a frequency at or above a threshold frequency, an output signal is generated from microphone signals generated by only the one or more front-facing microphones.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: June 16, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Gisle Langen Enstad, Haohai Sun, Johan Ludvig Nielsen
  • Publication number: 20200120418
    Abstract: A microphone array includes one or more front-facing microphones disposed on a front surface of the collaboration endpoint and a plurality of secondary microphones disposed on a second surface of the collaboration endpoint. The sound signals received at each of the one or more front-facing microphones and the plurality of secondary microphones are converted into microphone signals. When the sound signals have a frequency below a threshold frequency, an output signal is generated from microphone signals generated by the one or more front-facing microphones and the plurality of secondary microphones. When the sound signals have a frequency at or above a threshold frequency, an output signal is generated from microphone signals generated by only the one or more front-facing microphones.
    Type: Application
    Filed: September 20, 2019
    Publication date: April 16, 2020
    Inventors: Gisle Langen Enstad, Haohai Sun, Johan Ludvig Nielsen
  • Patent number: 10491995
    Abstract: A microphone array includes one or more front-facing microphones disposed on a front surface of the collaboration endpoint and a plurality of secondary microphones disposed on a second surface of the collaboration endpoint. The sound signals received at each of the one or more front-facing microphones and the plurality of secondary microphones are converted into microphone signals. When the sound signals have a frequency below a threshold frequency, an output signal is generated from microphone signals generated by the one or more front-facing microphones and the plurality of secondary microphones. When the sound signals have a frequency at or above a threshold frequency, an output signal is generated from microphone signals generated by only the one or more front-facing microphones.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: November 26, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Gisle Langen Enstad, Haohai Sun, Johan Ludvig Nielsen
  • Patent number: 10091575
    Abstract: A method and system for obtaining an audio signal. In one embodiment, the method comprises receiving a first sound signal at a first microphone arranged at a first height vertically above a substantially flat surface; receiving a second sound signal at a second microphone arranged at a second height vertically above the substantially flat surface; processing a signal provided by the first microphone using a low pass filter; processing a signal provided by the second microphone using a high pass filter; adding the signals processed by the low pass filter and the high pass filter to form a sum signal; and outputting the sum signal as an audio signal.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: October 2, 2018
    Assignee: Cisco Technology, Inc.
    Inventors: Johan Ludvig Nielsen, Gisle Langen Enstad
  • Publication number: 20150304765
    Abstract: A method and system for obtaining an audio signal. In one embodiment, the method comprises receiving a first sound signal at a first microphone arranged at a first height vertically above a substantially flat surface; receiving a second sound signal at a second microphone arranged at a second height vertically above the substantially flat surface; processing a signal provided by the first microphone using a low pass filter; processing a signal provided by the second microphone using a high pass filter; adding the signals processed by the low pass filter and the high pass filter to form a sum signal; and outputting the sum signal as an audio signal.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Johan Ludvig Nielsen, Gisle Langen Enstad
  • Patent number: 9113243
    Abstract: A method and system for obtaining an audio signal. In one embodiment, the method comprises receiving a first sound signal at a first microphone arranged at a first height vertically above a substantially flat surface; receiving a second sound signal at a second microphone arranged at a second height vertically above the substantially flat surface; processing a signal provided by the first microphone using a low pass filter; processing a signal provided by the second microphone using a high pass filter; adding the signals processed by the low pass filter and the high pass filter to form a sum signal; and outputting the sum signal as an audio signal.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: August 18, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Johan Ludvig Nielsen, Gisle Langen Enstad
  • Publication number: 20140050332
    Abstract: A method and system for obtaining an audio signal. In one embodiment, the method comprises receiving a first sound signal at a first microphone arranged at a first height vertically above a substantially flat surface; receiving a second sound signal at a second microphone arranged at a second height vertically above the substantially flat surface; processing a signal provided by the first microphone using a low pass filter; processing a signal provided by the second microphone using a high pass filter; adding the signals processed by the low pass filter and the high pass filter to form a sum signal; and outputting the sum signal as an audio signal.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 20, 2014
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Johan Ludvig Nielsen, Gisle Langen Enstad